Question about Akai PDP-4216M 42 in. Plasma Television

4 Answers

Plasma has lines/bars.

Tv was fine when I turned it off this morning, I got home this afternoon and it now has verticle lines or bars in many different colors that seem to move from left to right. This unit does not have a tuner it is just a monitor, I have tried hooking it up to different sources, this didnt make a difference..
Also, when I hit the menu button the screen will go black and show only the line in the area where the little menu box would pop up..
Any help is appreciated..


Posted by on

  • cjohnson03 Feb 26, 2008

    Getting multimeter from work tomorrow..
    I will take the readings and post accordingly.
    If there were any bad fuses would the tv still come on?
    Also, I dont know if this helps, but there are some red and green lights on a couple of the boards, one of the green ones flashes all the time and it has 2 green lights next to it that burn steady.

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Looks like its a problem with the capacitors on the power supply zone.. DO you have experience in electronics? If yes just get a multimeter and check for any open circuits by measuring the voltages. Also check for blown fuses.. If you cant figure out whats wrong..get me the multimeter readings so that we can fix it..

Posted on Feb 21, 2008

  • eagle338
    eagle338 Feb 26, 2008

    ok.. the black part is only where the menu box shows up? Then its not a problem in the power supply.. Its probably just a few dry solders or loose contacts... When the lines are showing up just whack the the tv a little bit.. If you see those line patterns change then its a very easy repair job and should not cost you much at all.. let me know what happened..

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Hi,

The first thing i would say is check your cable box.Try adjusting he wires attached to it properly and then see if it makes any difference.iF it does then the problem is with the cable box you have to call you cable operator to fix this.

FEW TROUBLESHOOTING STEPS YOU CAN TRY:

ONE: Do a hard reset (just to make sure there is nothing in the coding that is fowling things up). Unplug the power cord; leave it disconnected for 4 hours. That will restore everything to factory defaults when you power it back up.

TWO: Do the "whacking test" by banging your fist on a few strategic places to see if there are any cold solder joints or loose wires acting up inside the set.

The display driver board has probably got a bad connection, loose solder joint or bad IC.
If the above steps don't solve ur problem then I suggest you to go for a repair.Th cost will be around $300.

Goodluck..

Posted on Feb 21, 2008

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Very often when the power supply is not giving you pure DC due to defective capacitors. This seems to be a common failure on LCD and Plasmas power supplies.
This failure may also be around the vertical section of this TV.
I would suggest to take it to a repair shop or if the TV is still under warranty call the place where you bought the TV and ask them for an authorized repair centre.

Posted on Feb 21, 2008

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Hi sir,

Posted on Feb 21, 2008

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Posted on Jan 02, 2017

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